Sole fastening and trimming machine.



W. T. B. ROBERTS. SOLE FASTENIN G AND TRIMMING MACHINE.

APPLICATION FILED AUG.1.1912. 1,189,727., Patented May18,1915.

2 SHEETS-SHEET1.

THE NORRIS PETERS c0., PHOTOYLITHOH h ASHINGTON. D. C.

W. T. B. ROBERTS.

SOLE FASTENING AND TRIMMING MACHINE.

APPLICATION FILED RUE]. I912. 1,139,727.. Patented May 18, 1915.

2 SHEETS-SHEET 2.

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- mw m l V/ TNES'SES THE NORRIS PETERS 60.. PHOTO-L rinrrnn erases rarnnr @FFfQE.

WILLIAM T oMAsieUckINGHAM nonnnrs, or LEICESTER, ENGLAND, ASSIGNOR 'ro UNITED SHOE MACHINERY coMrAN or PATnnson, new JERSEY, A CORPORA- TION OF NEW JERSEY.

SOLE FASTENING AND.TRIMIVIII TG MACHINE.

meager.

Specification of Letters Patent.

Patented May is, 1915.

Application filed August 7, 1912. Serial No. 713,785.

, sorting fastenings and more particularly to fastening inserting machines which are provided with a trimming knife whereby the rough rounding operation may be performed upon the sole, particularly about the heel seat end of the sole, while the sole is being attached to the shoe. l

The soles of shoes which are made at the present time are usually trimmed so. that the edge isperpendicular, or approximately perpendicular, to the sole face butgowing to space considerations in theusual fastening inserting machine a reciprocating knife of the ordinary rough rounding type which moves in aplane perpendicular tothe sole face cannot be used, since for closetrimming of the sole, particularly in the region of the heel seat, by such a construction the knife and mechanism for supporting and operating it would have to be thrown forward almost in a line with the fastening driver, and this would leave insufficient room for the shoe to be brought into position for the fastening inserting operation.

According to the present invention, which contemplates the use of a knife moving to and fro, this difficulty is obviated by the provision of an oscillating knife, and an object of the present invention isto provide an improved construction of knife supporting and operating mechanism.

In order that the oscillating knife may in its cutting stroke be approximately perpendicular to the face of the sole and yet. shall have its operating mechanism well behind the driver so as to leave suflicient space for the shoe, it is advisable that the oscillations should take place about an axis which is approximately at the levelof the tread face being operated upon, and that the radius of the path of travel of the knife shall be. as

small as is convenient. Accordingly, in the preferred embodiment of the invention there lsprovided an oscillating trimming knife which enters the work from the mud or welt face of the sole and which moves in an are about an axis that is approximately parallel to the plane of the solethat is being trimmed. 1

A further object of the invention is to provide knife operating mechanism which may be adapted to operate upon various classes and sizes of shoes, and accordingly in a machine having the features aforementioned there is provided means for adjust ing the knife toward or from the fastening inserting mechanism.

It often happens that variation in the width of the projecting margin of the sole not only requires an adjustment of the knife in relation to the line of fastenings, but also an adjustment of the work gage both to the knife andto the line. of fastenings, since the distance ofthe feather of the shoe from the line of fastenings varies according to the distance of the latter from the edge of the sole.

Another important feature of the invention is the provision ofmeans for adjusting the gage toward and from the knife in a direction parallel or approximately parallel to the plane of the shoe bottom to provide the required adjustment aforementioned.

Another important feature of the invention is the provision of means for shifting the work gage toward and from its opera tive position to permit the easy insertion or removal of the margin of the sole between the work, gage and the work abutment, the

the work gage may be provided with means whereby it may be adjusted toward or from that portion of the machine against which the sole face abuts, so thatthe limit of the final position of the gage in relation to the work abutment may be varied according to the variations in thickness of the sole being operated upon. For convenience the work loo ice"

, gage may be formed upon a member which is arranged to act also as a guard between the knife and the work.

Other features and objects of the invention will appear from the following de y scription when considered in connection 7 with the accompanying drawings 1n which side sectional elevation of the knife support ing mechanism shown in Fig. 1.

"Projecting from the frame of the machine in proximity to the driver 2 is a bracket 4 which is adapted to carry the knife, knife guard and shearing plate.

Upon the underside of the bracket and at.

its outer edges are guideways 6 adapted to cooperate with corresponding guideways in a slider 8 so that the latter may be adjusted toward and from the driver, the adjustment being obtained by'means of a rack 10' out upon the underside of the bracket and a pinion 9 mounted upon a spindle journaled on'the slider 8, the said spindle having on one end a handle 12 by which the operator can move it to adjust the slider toward or. The handle isheld in adfrom the driver. justed position bymeans of. a spring friction washer. 1 7

'At opposite sides of the slider 8 are two bearingbrackets 14, 16in which is mounted a shaft 18 that lies so as to be approxi- "mately parallel'to the margin of the portion of the sole that is being trimmed. and

" that projects beyond the bracketsfat both ends; fulcrumed upon these ends are the extremities20, 22 of a forked yoke 24 which straddles the'slider and which carriesat its middle portion a flange 26. The flange is provided with an arcuate guideway which is concentric with the fulcrum of the yoke and in which a correspondingly curved knife 28 is gripped by means of a clamping plate and screw. The forked yoke being fulcrumed upon the shaft ends will therefore move the knife in the arc of a circle whenever the shaft is oscillated. In order that the oscillation of the knife may be as smooth as pos sible ,a balance weight 30 is provided upon the yoke arm 22. It will be noted that the a position of the knife is in close proximity to that of the driver so that both "operate at substantially the same portion of the sole.

In order to oscillate the yoke 24 the fol- ,constructed in two parts.

7 now be described.

lowing mechanism is used. Projecting from the outside of the yoke arm22 are two lugs 32 bored to receive a pin 3.4, and mounted on the pin between the lugs is a rectangular block 35 having extending rearwardly' from it a stub shaft 86whichis located in a'bearing in a boss 38 mounted upon the end of the driving shaft 40, the stub shaft being held in its bearing by means of a plate 42 screwed to its end and fitting into a recess in the boss adjacentto the shaft. The boss 38 has a projecting rim adapted to fit into a corresponding groove upon a flange 44 upon the, end of the shaft 40-and is secured to the flange by means of bolts. The bearing for thestub shaft lies at an angle to the axis of'the driving shaft such that the axis of the stub shaft and the axis of the driving shaft will intersect at the center of the shaft 18; Asthe driving shaft rotates the stub shaft will be carried around in its bracket but will not be rotated therewith since it is held in position by means of the rectanguprojecting extension 46 which is preferably adjustable and which extends under the throat and acts as a work abutment.- It has inserted in its under face a shearing plate 48 of any suitable material 'against'the edge of which the knife28 is adapted to work .7

scissorwise. Thus the knife as it'w'ere shears through the projecting margin of. the sole, theshearing plate of course being automatically adjusted with the knife since both are mounted upon the slider 8. I

'When the slider'S is adjusted toward and from the driver the. rectangularblock" 35.

which oscillates the shaft will also be-ad- V justed correspondingly and in order to. provide for this adjustment the driving shaft is V The end of one part is reduced at 52 and'isprovided with a. spline working in arkeyway in a recess in the other part which carries the pulleys by which'the' apparatus is operated' Consequently 'as the slider 8 is moved backward and forward the shaft 40 is shortened or lengthened correspondingly.

The mounting of the knife guard will Mounted in a suitable guideway upon the upper side of the bracket 4 and about itsmiddle is a second slider 56 having teeth. 58 cut uponit's underside at its rearward end; these teeth engaging the teeth at one end with a handle 64 means of '2 of a pinion 60 upon aspindle 62 mounted v in the bracket 54. The spindle is provided which the operator can move the second slider toward and from thedriventhe han- 'dle being retained in adjusted position by means of a spring friction washer 66. Carried upon the underside of this slider 56 is a shoulder on which is mounted a pin68 carrying one end of a bracket 70 whose other end is so bent that it projects underneath the yoke and the shank of the knife 28. This free end isprovided with a guideway in which is bolted the correspondingly shaped shank of a guard 72 that projects upwardly and forwardly in such a manner as to form a guard between the knife and the work. a

At its upper end this guard 72 is shaped to abut against the welt side of the projecting margin of the sole so as to act as a sole gage to assist in positioning the sole margin in relation to the work abutmentand it is also shaped as an edge gage to abut against the shoe adjacent to the crease to position it in relation to the knife. Projecting from the lower side of the guard bracket 70 in a lug 74 upon which a link 76 is pivoted, the link at its other end passing freely through a pivoted block upon the outer end of an arm 78 attached to the horn shaft 80. The link at its lower end carries a collar 82 so that as the treadle is operated to depress the horn for the insertion of the work the block will strike the collar and will carry the link downward with it thus rocking the bracket 70 about its pivot and loweringthe guard so that the work maybe more easily inserted between it and the work abutment.

The knife guard is normally held in its uppermost position by means of a spring 84 and this position can be adjusted by means of a screw-threaded pin 86 passing through the bracket 70 and adapted to contact with a lag 88 projecting downward from the second slider 56.

Having described my invention, what I.

claim as new and desire to secure by Letters Patent of the United States is i 1. In a sole fastening and trimming ma chine, a work abutment, sole supporting means operating within the'shoe and between which and the work abutment the sole to be fastened is clamped, and an oscillating sole trimming knife having its operative movement about an axis outside, approximately in the'plane of, and substantially parallel to the portion of the sole to be trimmed, whereby the sole cutting stroke of said knife is substantially normal to the sole, the path of travel of said knife being nearest to said work support substantially at the point of operation upon the sole.

2. I11 a sole fastening and trimming ma chine, a work support, a work abutment between which and the work support the portion of the sole to be fastenedis clamped and an oscillating trimming knife arranged to enter the sole from'the rand side and to cooperate with said work abutment in trim ming the edge of the sole and having its operative movement about an axis that is ap- I proximately inthe plane'of, and parallel to, the portion of the sole that is being trimmed, whereby the nearest point of approach of said knife to said work support is where it cuts the sole.

3.. In a sole fastening machine, a work support, a work abutment between which and the work support the portion of the sole to be fastened is clamped and an oscillating trimming knifearranged to enter the sole tween which and the work support the por-,

tion of the sole to be fastened is clamped and an oscillating trimming knife arranged to enter the sole from the rand side and to cooperate with said work abutment in trimming the edge of the sole and having its operative movement about an axis that is approximately in the plane of, and parallel to,

the portion of the sole that is being trimmed, and a guard for said knife arrangedto enter the rand crease between the upper and the sole and to serve as a gage for the sole fastening operation andalso to determine the width of the trimmed portion of the sole.

5. In a sole fastening and trimming machine, a worksupport,'a work abutment between which and the work support the portion of the sole to be fastened is clamped and an oscillating trimming knife having its operative movement about an axis substantially in the plane of the portion of the sole to be trimmed, a plate against which the bottom of the sole abuts and over the edge of which said knife is adapted to effect a shearing out, and means for simultaneously adjusting said knife and plate to vary the width of the trimmed sole margin. 7

6. In a sole fastening and trimming machine comprising means for inserting sole fastenings, an oscillating trimming knife having its operative movement about an axis substantially in the plane of the portion of the sole to be trimmed, a guard for said knife arranged between said knife and the shoe upper and serving as a shoe gage, and means for adjusting said guard and knife toward and away from the point of operation of the means for inserting sole fasten- V ings.

7. In asole fastening and trimming machine comprising means for inserting sole "8. In a sole fastening and trimming machine comprising means for inserting-sole fastenings, an oscillating trimming knife, a guard for said knife serving also as a shoe gage, means for adjusting said guard and knife toward and away from the point of operation of the means for inserting sole fastening's, and vmeans for adjusting said guard relatively to said knife.

1 9. In, a sole fastening and trimming ma;

chine oomprising meansfor inserting sole fastemngs, an oscillating trimming knife having its operative movement 7 about air axis substantially in theplane of the porname to this specification in the presence of 7 two subscribing'wi-tnesses.

WILLIAM THOMAS BUCKINGHAM ROBERTS.

Witnesses a ARTHUR SILVER, CLAUD BENNION.

(Topics of this patent may be obtained for five cents each, by addressing the f Commissioners of Patents.

7 Washington, I), C. i 1 

